Can-surface presser and evener.



T. A. JACKSON.

CAN SURFACE PRESSER AND EVENER.

APPLICATION FILED MAR.I0| 1916..

1 212 489, Patented Jan. 16, 1917.

5 York,

1 drawings, forming part placing the can in an carrled around against THADDEUS A. JACKSON, 01? BROOKLYN, NEW YORK.

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Specification of Letters Patent.

Patented Jan. 16, 19117..

Application filedMarch 10, 1916. Serial No. 83,378.

To all whom it mag concern:

Be it known that I, THADDEUS A. JAoK- .SON, a citizen of the United States, residing in the borough of Brooklyn, city of New' State of New York, have invented a certain new and useful invention in Can-, Surface Pressers and Eveners, of which invention the following is a specification, reference being had to the accompanying of this specification. The object of the present invention is to provide an apparatusfor operating on a milk can or other container having cylindrical sides and a reduced neck, by merely inclosing shell, and then causing pressing rollers to be brought irito the can through the neck, and feeding the can axially with relation to the rollers, while the rollers are caused to be bodily the inner wall of'the can.

In the accompanying drawing showing one embodiment of my invention, Figure 1 is a perspective view of the device, with the supporting legs for the frame omitted. Fig. 2 is a partial plan view, partly in section, before insertion of the rolls into the can. Fig. 3 is a partial plan view, showing the rolls inserted in the can. Fig. 4 is an end view, of the casing that supports the rolls with the, latter in the'normally closed position; and Fig. 5 is a similar view with the rolls shifted to an outer position.

As shown the apparatus is applied to the? ordinary mechanism of a turning lathe, 4 with certain parts omitted. A carriage 102 is slidable on the bed 101 of the device, which carriage has a hinged cover 103 that when closed will have a cylindrical interior adapted to engage the cylindrical outer surface of the can 129. The cover and carriage thus form a shell that may have a neck portion at one end to conform to the usual shape of a milk can. The rear end of the shell is left open and the end of the can is engaged by a dished plate 107 fast on a screw threaded rod 108 that is adjustably supported at the rear of the carriage 102, whereby after the can is inserted and the cover locked by suitable bolts 109, the plate 107 can be advanced by turning the screw 108 to engage the bottom of the can. The shell member may have a flat end wall for use with a flat bottom can.

rollers 115, 116,

, 4, the friction in suitable bearings and rotated by gear 122, and gear 134, on a counter shaft driven by a belt 135. On the main shaft is secured a casing 104 of cylindrical form, that will be rotated by the shaft, and may be supported by a bearing member 105 at itsmiddle portion. Inside of the casing 104 are rotatably mounted a series of rock shafts 131, whose ends project beyond the casing and carry arms 15, 16 and 18 respectively, on the outer ends of which are pressing and 118 respectively. The outermost arm 16 also carries a roller 11'? turning in a plane parallel with the axis of the casing, adapted to engage the inner wall ofthe can end. The other ends of the three rock shafts project toward the head and each carries an arm 114 that has a friction roller 113 on its extremity. A head 106 is secured to the main shaft and carries three cams 112, adapted to engage the rollers 113 of the said three arms 114 respectively. Coil springs 130 are provided on the rock shafts 131 that will swing these shafts to normally move the arms 15, 16, and 18, to their inner position as indicated in Fig. 4, which will permit the insertion of the casing 104 into the can through the reduced neck, as indicated in Fig. 2, upon approaching movement of the can andcasing. This is accomplished by advancing'the carriage 102 by suitable means. "*As shown a feed shaft 124 is driven by a belt 123, and a worm 127 on the shaft engages a worm wheel 126. The latter carries a pinion, not shown,,engaging the rack 125 on the bed plate, when the wing nut 136 causes the worm wheel and pinion to connect. A pilot wheel 128 can be used for movement when desired.

The head 106 is splined to move in a groove 120 in the main shaft to permit sliding of the head, to compel it to turn with the shaft. The head is advanced by a lever 121 pivoted at 132 to a bracket 133. The cams are. so arranged on the head that in the normal position shown in Fig. 2 with the arms and rollers in the position of Fig.

springs against the outer portion of the cams. This will permit the can 'to be advanced for insertion of the rollers and arms. Then the lever 121 is swung to the left as indicated in Fig. 3, which will advance the head, and the cams will engage the friction rollers are pressed by the rollers to swing the rock shafts, to swing the arms inside of the can outward as indicated in Fig. 5. This will cause the roll ers to be brought against the inner wall of the can as shown in Fig. 2, and as casing 104 is rotated from the main shaft, while the can is held in the shell the rollers will successively engage the entire inner wall of the can, as the can is advanced by the feeding of the carriage and shell.

It will be understood that the bottom of the shell will be brought to engage the roller 117, which will press it against the plate 107 and serve to'straighten any dents in the bottom wall. When the operation is complete, the handle 121 is released, or swung to the right, which will withdraw the rollers and permit removal of the can.

Having thus described my invention, what I claim is 1. A can-pressing machine comprising a shell having a cylindrical portion adapted to incase the cylindrical portion of a can, a driving shaft concentric with said shell, a plurality of arms connected with said shaft, a roller on the outer end of each arm; the shell being supported for movement axially relative to said shafts and means for shifting the arms to move the rollers in different opposed directions to and from the inner wall of the shell during the rotation of the driving shaft, whereby the rollers can be swung inwardly for their insertion through the reduced neck of the can, and can be swung outwardly for adjustably engaging the inner surface of the wall of the can, while being carried around by means of the drivin shaft, and during the movement of the shell and can longitudinally with the shafts.

2. A can pressing machine comprising a shell having a cylindrical portion adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, a plurality of arms connected with said shaft, a roller on the outer end of each arm, means for shiftingthe arms to move the rollers to and from the axis of the shell during the rotation of the shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from'the axis for engagement with the inner wall of the can, and means for moving the shell axially to cause the rollers to engage the inner wall of the can during the rotation of the main shaft whereby the-rollers are carried around to engage such wall.

A can pressing machine comprising a shell having a cylindrical portion adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, a plurality of arms connected with said shaft, a roller on the outer end of each arm, means for shifting the arms to move the rollers to and from the axis of the shell during the rotation of the shaft, whereby the rollers can be swung toward the axis for in sertion in the reduced neck of the can, and can be swung outwardly from the axis for engagement with the inner wall of the can, means for moving the shell axially to cause the rollers to engage the inner wall of the can during the rotation of the main shaft whereby the rollers are carried around to engage such wall, and a roller on one of said arms adapted to engage the inner wall at the end of the can.

4. A can pressing machine comprising a shell having a cylindrical inner wall adapted to incase the cylinder portion of thelcan, a driving shaft concentric with said shell, a casing carried by said driving shaft, a plurality of rock shafts mounted in said casing beyond the axis thereof, an arm on one end of each rock shaft, and a roller on the outer end of each arm that is swung to and from the axis of the shell by the swinging of its supporting shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis for engage ment with the inner wall of the can, upon longitudinal movement of the can relativeto the rollers.

5. A can pressing machine comprising a shell having a cylindrical inner wall adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, a casing carried by said driving shaft, a 100 pluralityof rock shafts mounted in such casing beyond the axis thereof, an arm on one end of each rock shaft, a roller on the outer end of each arm that is swung to and from the axis of the shell the swinging of 105 its supporting shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis for engagement with the inner wall of the can, upon 110 longitudinal movement of the can relative to the rollers, and means for moving the shell axially to cause the rollers to engage the inner wall of the can during the rotation of the main shaft whereby the rollers are carried around to engage such wall.

6. A can pressing machine comprising a shell having a cylindrical inner wall adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, 120 a casing carried by said driving shaft, a plurality of rock shafts mounted in said casing beyond the axis thereof, an arm on one end of each said rock shaft, a roller on the outer end of each arm that is swung to and 125 from the axis of the shell by the swinging of its supporting shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis for engage- 180 arms adapted to engage the inner wall at the end of the can.

7. A can pressing machine comprising a shell having a'cylindrical inner wall adapted to incase the cylindrical portion of the can,

a driving shaft concentric with said shell, a casing carried by said driving shaft, a plurality of rock shafts mounted in said casing beyond the axis thereof, an arm on one end of each said rock shaft, a pressing roller in the outer end of each arm that is swung to and from the axis of the shell by the swinging of its supporting shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis for engagement with the inner wall of the can upon longitudinal movement of the can relative to the rollers, and a roller on one of said arms adapted to engage the inner wall at the end of the can, said shell having adjustable means for supporting the outer end wall of the can.

8. A can pressing machine comprising a shell having a cylindrical inner wall adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, a casing carried by said driving shaft, a plurality of rock shafts mounted in said casing beyond the axis thereof, an arm on one end of each said rock shaft, a pressing roller on the outer end of each arm that is swung to and from the axis of the shell by the swinging of its supporting shaft, whereby the rollers can be swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis &

for engagement with the inner wall of the can upon longitudinal movement of the can relative to the rollers, each of said rollers carrying a shaft having an arm on its outer end, a friction roller on each latter arm, a head movable endwise on the main shaft but rotating therewith, a set of cams on the head arranged to engage said friction rollers to swing the rock shafts and move the said can engaging rollers outwardly from the axis of the driving shaft, a lever arranged to advance said head to swing the arms, and a spring on each said rock shaft whereby the friction rollers are pressed against the cams and the pressing rollers are moved inwardly.

E). A can pressing machine comprising a shell having a cylindrical inner wall adapted to incase the cylinder portion of the can, a driving shaft concentric with said shell, a casing carried by said driving shaft, a plurality of rock shafts mounted in said casing beyond the axis thereof, an arm on one end of each said rock shaft, a roller on the outer end of each arm that is swung to and from the axis of the shell by the swinging of its supporting shaft, whereby the rollers can he swung toward the axis for insertion in the reduced neck of the can, and can be swung outwardly from the axis for engagement with the inner wall of the can, upon longitudinal movement of the can relative to the rollers, said shell being formed in two similar parts hinged together to open for insertion and removal of the can, and means for traversing the shell along the axis of the main shaft.

Signed at New York, in the county of New York and State of New York this 29th day of February A. D. 1916.

THADDEUS A. JACKSON. 

